A simple change of lead is a dressage movement used to switch the canter lead through the trot. It involves the horse transitioning from canter to trot for a few strides, then smoothly picking up the canter again on the opposite lead. This movement tests the horse’s balance, obedience, and smoothness in transitioning between gaits. The key to a successful simple change is maintaining a controlled, collected trot during the change, ensuring the horse does not rush or lose rhythm. Simple changes are foundational in preparing both horse and rider for more complex changes, such as flying changes, as they help develop the horse's straightness and responsiveness to aids.